博客

package Basement;

import java.util.Random;
import java.util.Scanner;

/**
 * @Author: Guojiang
 * @Date: 2022/12/29/9:26
 * @Description:
 */
//把数组全部打印在一行
public class test5_method_03 {
    public static void main(String[] args) {
        int[] A = new int[10];//数组的动态初始化
        Random r = new Random();
        for (int i = 0; i < A.length; i++) {
            A[i] = r.nextInt(10);
        }
        Scanner sc = new Scanner(System.in);
        System.out.println("请输入一个数字");
        int number = sc.nextInt();
        printArray(A);
        if (NumberExit(A, number))
            System.out.println("输入的数字存在与该数组中");
        else
            System.out.println("输入的数字不在数组中");
    }

    public static void printArray(int[] arr) {
        System.out.print("[");
        for (int i = 0; i < arr.length; i++) {
            if (i == arr.length - 1)
                System.out.print(arr[i] + "]");
            else
                System.out.print(arr[i] + ",");
        }
        System.out.println("\n");
    }

    public static boolean NumberExit(int[] array, int number) {
        for (int i = 0; i < array.length; i++)
            if (number == array[i])
                return true;
                return false;
    }
}